In the reaction, 2K (s) + 2H2O (l) produces 2KOH (aq) produces H2 (g), which of the reactants is a solid

k

Explanation:

2K (s) + 2H2O (l) produces 2KOH (aq) produces H2 (g),

2K (s) + 2H2O (l) --> 2KOH (aq) + H2 (g)

(s) = solid

(l) = liquid

(g) = gas

Left hand side are reactants

2K (s) + 2H2O (l)

Right hand side are products

2KOH (aq) + H2 (g)

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error

< > according to newton's third law of motion, forces always act in equal but opposite pairs. another way of saying this is for every action, there is an equal but opposite reaction.< >